1982

6.5

2018

5.3

2005

6.3

2006

7.0

2017

6.1

1996

6.9

1966

5.5

2022

5.6

2020

4.8

1982

4.8

2021

5.7

2016

5.6

1968

3.5

1975

5.1

2015

5.6

2019

6.4

1979

4.0

2009

4.0

2001

4.2

2011

0.0